what process occurs to form microspores and megaspores in flowering plants?
Homework Answers
Microsporogenesis is the process of formation of microspore and megasporogenesis is the process of formation of megaspore in the flowering plant.
Microsporogenesis:-
Miotic division occurs in the microspore mother cell to form 4 haploid microspore tetrad which is held togather by challose ( secreted by tatptum) callase enzyme degenerate challose and unequal division occur in the cells of tetrad. The small cell is known as generative cell and the larger cell is known as vegetative cell. The generative cell reaches inside the vegetative cell. Two protective layers of sporopollinin is formed. The outer layer is known as exine and the inner layer is known as intine. This whole structure is known as pollen grain or microspore.
Megasporogenesis:-
Any cell of nucellus becomes active. Free nuclear division occurs and 8 nuclei are formed. They are arranged in such a manner that the uppr three are known as antipodal cell the central two are known as polar nuclei and the two sunergids are present with the egg cell. This whole is known as embryo sac.
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what process occurs to form microspores and megaspores in flowering
plants?
b ory Marvel Observation Flowering Plant Life Cycle Use Figure 10.6 as a guide to describe...
b ory Marvel Observation Flowering Plant Life Cycle Use Figure 10.6 as a guide to describe the life cycle of flowering plants 1. The parts of the flower involved in reproduction are the and the 2. The there the top of the same has two sacs, which produce - by meiosis. 3. Within an ovule, a megaspore mother sellepoes meliosis to produce four three of which die 4. A microspore underpoes mitosis and becomes a - the male gametophyte. 5....
1. What does the male gametophyte in flowering plants lack that we see in the male...
1. What does the male gametophyte in flowering plants lack that
we see in the male gametophyte in gymnosperms (e.g. pine)?
[answer]
2.
3.Double fertilization in flowering plants results in the
2N_____________ and the 3N _______________ . The 3N tissue is
important because it will provide ___________________ for the
growing seed.
4. A complete flower will have the following four parts (listed
in order below from the outer part of the flower inward):
_____________ , ______________, ______________ ,
_______________.
5....
On the underside of fern fronds are clusters of within which meiosis occurs and are formed....
On the underside of fern fronds are clusters of within which meiosis occurs and are formed. prothallia sporangia strobili pinnae Gymnosperms are plants with exposed seeds borne on clusters of scale-like structures called microspores megaspores fruits cones Which of the following characteristics is not found in all gymnosperms? pollen cones vessels heterospory seeds A plant like Pine tree with both female and male reproductive structures is dioecious monoecious homosporous heterosporous Pollination is the same as fertiluation. True False Megaspores occur...
1. What do apogamic non-vascular plants and gametophytic apomixis of flowering plants share in common? 2....
1. What do apogamic non-vascular plants and gametophytic apomixis of flowering plants share in common? 2. How does gametophytic apomixis and apogamy differ? 3. How does gametophytic apoximis and vegetative apomixis differ?
Plants use the process of photosynthesis to convert into This process occurs within the in the...
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(12 points) In a study appearing in the journal Science, a research team reports that plants in southern England are flowering earlier in the spring. Records of the first flowering dates for 385...
(12 points) In a study appearing in the journal Science, a research team reports that plants in southern England are flowering earlier in the spring. Records of the first flowering dates for 385 species over a period of 47 years show that flowering has advanced an average of 15 days per decade, an indication of climate warming according to the authors Identify the 6W's in the given description of data. What: Who when Where How Why
(12 points) In a...
choose the correct answer please Question 16 What structure is unique to reproduction in flowering plants?...
choose the correct answer please
Question 16 What structure is unique to reproduction in flowering plants? a. These are found in all plant reproduction. O b. a diploid zygote c. a haploid egg cell d. a triploid cell e. a haploid sperm cell
You have two families of true-breeding diploid Zea mays(maize, corn) plants. Late flowering, with tall stalks...
You have two families of true-breeding diploid Zea mays(maize, corn) plants. Late flowering, with tall stalks Early flowering, with short stalks A cross between these two plants yields F1 hybrids that are late flowering, with tall stalks. Given this information, which alleles are dominant? Explain your reasoning. Using the letters F or f for flowering and T or t for stalk height, indicate the genotypes of the two plants. Plant 1 ______________ Plant 2 ___________________ What is the genotype of the...
How does duckweed plant reproduction differ from typical terrestrial flowering plants? Explain.
How does duckweed plant reproduction differ from typical terrestrial flowering plants? Explain.
Question 49 Which of the following is true concerning flowering plants? The gametophyte generation is what...
Question 49 Which of the following is true concerning flowering plants? The gametophyte generation is what we see when looking at a large plant. The sporophyte generation is not photosynthetic. The flower includes sporophyte tissue. The gametophyte generation is dominant. The sporophyte generation consists of relatively few cells within the flower. In living conifers, microscopic male gametophytes should be found inside O ovulate cones. O an archegonium. ovaries. O pollén cones. O sporophylls.
b ory Marvel Observation Flowering Plant Life Cycle Use Figure 10.6 as a guide to describe the life cycle of flowering plants 1. The parts of the flower involved in reproduction are the and the 2. The there the top of the same has two sacs, which produce - by meiosis. 3. Within an ovule, a megaspore mother sellepoes meliosis to produce four three of which die 4. A microspore underpoes mitosis and becomes a - the male gametophyte. 5....
1. What does the male gametophyte in flowering plants lack that
we see in the male gametophyte in gymnosperms (e.g. pine)?
[answer]
2.
3.Double fertilization in flowering plants results in the
2N_____________ and the 3N _______________ . The 3N tissue is
important because it will provide ___________________ for the
growing seed.
4. A complete flower will have the following four parts (listed
in order below from the outer part of the flower inward):
_____________ , ______________, ______________ ,
_______________.
5....
On the underside of fern fronds are clusters of within which meiosis occurs and are formed. prothallia sporangia strobili pinnae Gymnosperms are plants with exposed seeds borne on clusters of scale-like structures called microspores megaspores fruits cones Which of the following characteristics is not found in all gymnosperms? pollen cones vessels heterospory seeds A plant like Pine tree with both female and male reproductive structures is dioecious monoecious homosporous heterosporous Pollination is the same as fertiluation. True False Megaspores occur...
Plants use the process of photosynthesis to convert into This process occurs within the in the tissue of the plant. of cells, which lie During photosynthesis, the capture incoming energy from sunlight and convert it into energy carriers. The use the energy from the previous set of reactions to fix carbon dioxide molecules into glucose. Plants then use the sugars produced for energy, earning them their title of because they produce their own food.
(12 points) In a study appearing in the journal Science, a research team reports that plants in southern England are flowering earlier in the spring. Records of the first flowering dates for 385 species over a period of 47 years show that flowering has advanced an average of 15 days per decade, an indication of climate warming according to the authors Identify the 6W's in the given description of data. What: Who when Where How Why
(12 points) In a...
choose the correct answer please
Question 16 What structure is unique to reproduction in flowering plants? a. These are found in all plant reproduction. O b. a diploid zygote c. a haploid egg cell d. a triploid cell e. a haploid sperm cell
Question 49 Which of the following is true concerning flowering plants? The gametophyte generation is what we see when looking at a large plant. The sporophyte generation is not photosynthetic. The flower includes sporophyte tissue. The gametophyte generation is dominant. The sporophyte generation consists of relatively few cells within the flower. In living conifers, microscopic male gametophytes should be found inside O ovulate cones. O an archegonium. ovaries. O pollén cones. O sporophylls.
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